A precision seeding device and method for a sugar beet breeding plot experimental field

Abstract

This invention relates to the field of sowing equipment technology, and in particular to a precision sowing device and method for sugar beet breeding plot experimental fields. The precision sowing device for sugar beet breeding plot experimental fields includes: symmetrically arranged precision sowing units, each including a frame connected to a push handle; a row spacing adjustment component for adjusting the distance between two precision sowing units; each precision sowing unit is equipped with: a soil loosening component for loosening and tilling the soil before sowing; a sowing component including a seed storage box, a sowing box, a conveying mechanism, a sowing quantity adjustment mechanism, and a depth adjustment mechanism; a compaction component for compacting the soil after sowing; and a vibrating seed metering component including an energy storage mechanism and a vibration mechanism. This invention has a compact structure and is easy to operate, making it particularly suitable for the needs of precision experiments in plot experimental fields.

Description

Technical Field

[0001] This invention relates to the field of sowing equipment technology, specifically to a precision sowing device and method for a sugar beet breeding plot experimental field. Background Technology

[0002] Sugar beets are an important root crop, primarily used for sugar extraction, animal feed production, and industrial applications. They are highly adaptable, have a short growth cycle, and can thrive in diverse climatic conditions, performing particularly well in cold regions. The necessity for agricultural research institutes to breed sugar beets lies mainly in increasing yield, improving resistance to pests and diseases, enhancing stress resistance (such as drought and cold tolerance), and increasing sugar content. Through breeding, higher-quality and more efficient varieties can be provided for sugar beet cultivation, further improving agricultural production efficiency and economic value.

[0003] Traditional sowing methods present numerous problems during the sowing process in sugar beet breeding experimental plots. Manual sowing is inefficient, and it's difficult to maintain consistent sowing spacing and depth, affecting the accuracy and reliability of experimental data. While some existing sowing machinery can improve efficiency, it's insufficient to meet the high precision and adjustability requirements of sugar beet breeding experiments. Sugar beet breeding experiments necessitate precise control of seed quantity and sowing depth to ensure the comparability and validity of data across different experimental plots. Summary of the Invention

[0004] The purpose of this invention is to provide a precision seeding device and method for sugar beet breeding plot experimental fields to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] On the one hand, a precision seeding device for a sugar beet breeding plot experimental field is provided, comprising:

[0007] A symmetrically arranged precision seeding unit, the precision seeding unit including a frame, the frame being connected to a push handle;

[0008] A row spacing adjustment component, which is used to adjust the distance between two precision seeding units;

[0009] Each precision broadcasting unit is equipped with:

[0010] A soil loosening component is disposed at the front of the vehicle frame and is used to loosen and till the soil before sowing.

[0011] The sowing assembly includes a seed storage box, a sowing box, a conveying mechanism, a sowing quantity adjustment mechanism, and a depth adjustment mechanism. The seed storage box is used to store sugar beet seeds and is mounted on the vehicle frame. The sowing box is fitted onto the seed storage box and is interconnected. The sowing box is equipped with a sower. The conveying mechanism is used to input the seeds from the seed storage box into the sower. The sowing quantity adjustment mechanism is used to adjust the conveying quantity of the conveying mechanism. The depth adjustment mechanism is used to adjust the sowing depth of the sower.

[0012] A compaction assembly is disposed at the rear of the vehicle frame and is used to compact the soil after sowing;

[0013] A vibrating seed metering assembly includes an energy storage mechanism and a vibration mechanism. The energy storage mechanism absorbs and stores the energy when the depth adjustment mechanism resets, and the vibration mechanism uses the energy stored in the energy storage mechanism to vibrate the seeds in the conveying mechanism, thereby reducing seed jamming.

[0014] Preferably, the row spacing adjustment component includes an adjustment push rod and a synchronous telescopic rod. The two ends of the adjustment push rod are respectively connected to the frame of different precision seeding units. Several synchronous telescopic rods are provided, and the two ends of the synchronous telescopic rods are respectively connected to the frame of different precision seeding units.

[0015] Preferably, the frame is connected to two movable wheels, and the soil loosening assembly includes a soil loosening roller, which is coaxially connected to the movable wheels. The soil loosening roller is used to loosen and till the soil before sowing.

[0016] Preferably, the conveying mechanism includes a first transmission gear, a second transmission gear, a transmission belt, and a conveying disc. The first transmission gear is coaxially connected to the loosening roller, the second transmission gear is coaxially connected to the conveying disc, the transmission belt is connected to the first transmission gear and the second transmission gear, the conveying disc is connected to the seeding box, and the conveying disc has a plurality of conveying grooves for clamping the seeds.

[0017] Preferably, the conveyor plate has an installation cavity, and the seeding rate adjustment mechanism is disposed in the installation cavity. The seeding rate adjustment mechanism includes a fixed plate, an adjustment motor, a position adjustment screw, a position adjustment nut, a connecting rod, an adjustment block, an adjustment plate, a closed telescopic rod, and a closed spring. The fixed plate is coaxially connected to the conveyor plate. The adjustment motor drives the position adjustment screw to rotate. The position adjustment screw is connected to the position adjustment nut. The position adjustment nut is connected to the adjustment block. Several adjustment plates are arranged around the adjustment block. The number of adjustment plates corresponds to the conveying trough. The adjustment block is connected to the adjustment plate through a connecting rod. The fixed plate has a sliding groove. One end of the adjustment plate is connected to the sliding groove. The adjustment plate is connected to the closed telescopic rod. The two ends of the closed telescopic rod are respectively connected to the adjustment plate and the side wall of the conveying trough. The closed spring is disposed inside the closed telescopic rod.

[0018] Preferably, the depth adjustment mechanism includes a speed sensor and a moving push rod. The speed sensor is disposed on the moving wheel and is used to detect the moving speed of the frame. One end of the moving push rod is fixedly connected to the seeding box, and the moving end of the moving push rod is fixedly connected to the seeder and can drive the seeder to move.

[0019] Preferably, the compaction assembly includes a compaction wheel connected to the vehicle frame.

[0020] Preferably, the energy storage mechanism includes an energy storage piston, a cylinder, and an air tank. One end of the energy storage piston is connected to the movable push rod, the piston end of the energy storage piston is connected to the cylinder, and the cylinder is connected to the air tank.

[0021] Preferably, the vibration mechanism includes a solenoid valve and a pressure relief valve. The solenoid valve is disposed on the adjusting plate and connected to the inner cavity of the closed telescopic rod. The solenoid valve is connected to the gas tank through an airflow pipe, and the pressure relief valve is disposed on the closed telescopic rod.

[0022] On the other hand, a precision seeding method is provided for use with the aforementioned precision seeding device for a sugar beet breeding plot experimental field, comprising the following steps:

[0023] A. Place beet seeds in the seed storage box, adjust the seed delivery amount of the conveying mechanism at one time through the seeding amount adjustment mechanism, and set the single displacement of the depth adjustment mechanism according to the planting needs.

[0024] B. The vehicle frame is moved along the breeding field. During the movement, the soil loosening component loosens the soil, and then the seeds are transported to the seeder for sowing through the conveying mechanism.

[0025] C. The compaction mechanism compacts the soil after sowing.

[0026] Compared with existing technologies, the beneficial effects of this invention are as follows: the row spacing adjustment component of this invention can accurately adapt to the planting patterns of different experimental fields, improving the versatility of the equipment; the integrated operation process of loosening soil-sowing-compacting significantly improves field efficiency; the seeding quantity adjustment mechanism and the depth adjustment mechanism work together to ensure sowing uniformity and seedling emergence consistency; the vibrating seed metering component utilizes an energy storage mechanism to convert the reset energy of the depth adjustment mechanism into airflow power to vibrate the seeds. This energy recovery technology structure is different from the conventional technology structure, and the technical effect is also different. It reduces seed jamming and realizes energy recycling, making it very energy-efficient and efficient; the structure is compact and easy to operate, especially suitable for the needs of precise experiments in small-scale experimental fields. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the connection structure between the loosening roller and the transmission gear of the present invention;

[0030] Figure 4 This is a schematic diagram showing the position and structure of the seeding box and the seeder of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the seeding box of the present invention. Figure 1 ;

[0032] Figure 6 This is a schematic diagram of the internal structure of the seeding box of the present invention. Figure 2 ;

[0033] Figure 7 This is a schematic diagram showing the position and structure of the movable push rod, cylinder, and air tank of the present invention;

[0034] Figure 8 This is a schematic diagram of the position structure of the movable push rod and the energy storage piston of the present invention;

[0035] Figure 9 This is a schematic diagram of the connection structure between the conveyor tray and the fixed tray of the present invention;

[0036] Figure 10 This is a schematic diagram showing the position and structure of the adjusting block and adjusting plate of the present invention;

[0037] Figure 11 This is a schematic diagram of the position structure of the closed telescopic rod and the closed spring of the present invention;

[0038] Figure 12 This is a schematic diagram of the connection structure between the regulating plate and the solenoid valve of the present invention;

[0039] Figure 13 This is a schematic diagram of the connection structure between the position adjusting nut and the adjusting block of the present invention;

[0040] Figure 14 This is a schematic diagram of the connection structure of the telescopic pipe, diversion pipe and joint of the present invention.

[0041] In the diagram: 1. Frame, 2. Push handle, 3. Seed storage box, 4. Seeding box, 5. Seeder, 6. Adjusting push rod, 7. Synchronous telescopic rod, 8. Moving wheel, 9. Loosening roller, 10. Transmission gear one, 11. Transmission gear two, 12. Transmission belt, 13. Conveying disc, 14. Fixed disc, 15. Adjusting motor, 16. Position adjusting screw, 17. Position adjusting nut, 18. Connecting rod, 19. Slide groove, 20. Adjusting block, 21. Adjusting plate, 22. Enclosed telescopic rod, 23. Enclosed spring, 24. Speed ​​sensor, 25. Moving push rod, 26. Compactor wheel, 27. Energy storage piston, 28. Cylinder, 29. Air tank, 30. Solenoid valve, 31. Pressure relief valve, 1301. Conveying trough, 101. Rigid pipe, 102. Telescopic pipe, 103. Diversion pipe, 104. Connector. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-14 The present invention provides a technical solution:

[0044] A precision seeding device for a sugar beet breeding plot experimental field, as shown in the instruction manual. Figure 1 As shown, it includes:

[0045] The precision seeding unit is symmetrically arranged. The precision seeding unit includes a frame 1, and the frame 1 is connected to a push handle 2. The push handle 2 is used by the user to push the frame 1.

[0046] The row spacing adjustment component is used to adjust the distance between two precision seeding units;

[0047] Each precision broadcasting unit is equipped with:

[0048] Soil loosening component, the soil loosening component is set in front of the frame 1, the soil loosening component is used to loosen the soil and till it before sowing;

[0049] The sowing assembly includes a seed storage box 3, a sowing box 4, a conveying mechanism, a sowing quantity adjustment mechanism, and a depth adjustment mechanism. The seed storage box 3 is used to store sugar beet seeds and is fixedly connected to the frame 1. The sowing box 4 is fitted onto the seed storage box 3 and is fixedly connected to the frame 1. The seed storage box 3 and the sowing box 4 are interconnected. The sowing box 4 is equipped with a sower 5 and a connecting pipe with a telescopic joint, so that the length can be adjusted accordingly as the sower 5 moves. The connecting pipe is used to input the seeds conveyed by the conveying tray 13 into the sower. The conveying mechanism is used to input the seeds in the seed storage box 3 into the sower 5. The sowing quantity adjustment mechanism is used to adjust the conveying quantity of the conveying mechanism, and the depth adjustment mechanism is used to adjust the sowing depth of the sower 5.

[0050] The compaction assembly is located at the rear of the frame 1 and is used to compact the soil after sowing.

[0051] The vibrating seed metering assembly includes an energy storage mechanism and a vibration mechanism. The energy storage mechanism absorbs and stores the energy when the depth adjustment mechanism resets, and the vibration mechanism uses the energy stored in the energy storage mechanism to vibrate the seeds in the conveying mechanism, thereby reducing the occurrence of seed jamming.

[0052] The row spacing adjustment assembly includes an adjustment push rod 6 and a synchronous telescopic rod 7. The adjustment push rod 6 is an electro-hydraulic push rod, and its two ends are respectively connected to the frame 1 of different precision seeding units. The synchronous telescopic rod 7 is also connected to the frame 1 of different precision seeding units at both ends. The synchronous telescopic rod 7 consists of two nested steel pipes. When the adjustment push rod 6 adjusts the row spacing, the synchronous telescopic pipes will extend and retract synchronously to ensure that the frame 1 of different precision seeding units remains parallel after adjustment.

[0053] The frame 1 is connected to two movable wheels 8 on both sides. The movable wheels 8 are used to assist the frame 1 in moving. The soil loosening component includes a soil loosening roller 9, which is coaxially connected to the movable wheels 8. When the movable wheels 8 rotate, they will drive the soil loosening roller 9 to rotate synchronously. The soil loosening roller 9 is used to loosen the soil and till it before sowing.

[0054] The conveying mechanism includes a first transmission gear 10, a second transmission gear 11, a transmission belt 12, and a conveying disc 13. The first transmission gear 10 is coaxially connected to the loosening roller 9. When the loosening roller 9 rotates, it will synchronously drive the first transmission gear 10 to rotate. The second transmission gear 11 is coaxially connected to the conveying disc 13. When the second transmission gear 11 rotates, it will synchronously drive the conveying disc 13 to rotate. The transmission belt 12 is connected to the first transmission gear 10 and the second transmission gear 11 respectively. The transmission belt 12 is used for transmission. The transmission belt 12 is a toothed belt. Because the toothed belt closely meshes with the teeth of the pulleys (including the first transmission gear 10 and the second transmission gear 11), it can reduce slippage and ensure transmission accuracy. The conveying disc 13 is rotatably connected to the seed box 4. The conveying disc 13 has several conveying grooves 1301, which are used to catch the seeds.

[0055] The conveyor plate 13 has an installation cavity for installing a seeding rate adjustment mechanism. The seeding rate adjustment mechanism includes a fixed plate 14, an adjusting motor 15, a position adjusting screw 16, a position adjusting nut 17, a connecting rod 18, an adjusting block 20, an adjusting plate 21, a closed telescopic rod 22, and a closed spring 23. The fixed plate 14 is coaxially connected to the conveyor plate 13, and the two are fixedly connected. Therefore, the fixed plate 14 will rotate with the conveyor plate 13 during use. The adjusting motor 15 drives the position adjusting screw 16 to rotate. The position adjusting screw 16 is connected to the position adjusting nut 17. The adjustment motor 15 drives the position adjusting screw 16 to rotate, which in turn drives the position adjusting nut 17 to move. One end of the position adjusting nut 17 is rotatably connected to an adjusting block 20, which surrounds the adjusting nut. Block 20 is provided with several adjusting plates 21, the number of which corresponds to the conveying trough 1301. The adjusting block 20 is connected to the adjusting plates 21 via a connecting rod 18. The two ends of the connecting rod 18 are rotatably connected to the adjusting block 20 and the adjusting plate 18, respectively. The fixed plate 14 is provided with a sliding groove. One end of the adjusting plate 21 is connected to the sliding groove 19. The adjusting plate 21 is connected to a sealing telescopic rod 22. The sealing telescopic rod 22 is used to ensure the sealing of the conveying trough 1301 when adjusting it. The two ends of the sealing telescopic rod 22 are connected to the adjusting plate 21 and the side wall of the conveying trough 1301, respectively. A sealing spring 23 is provided inside the sealing telescopic rod 22. The sealing telescopic rod 22 is used to seal the two sides of the conveying trough 1301 to prevent seeds from entering the installation cavity. The sealing spring 23 is used to ensure that the sealing telescopic rod 22 fits against the side wall of the installation cavity.

[0056] The depth adjustment mechanism includes a speed sensor 24 and a moving push rod 25. The speed sensor 24 is existing technology and can be purchased according to actual conditions. The speed sensor 24 is set on the moving wheel 8 and is used to detect the moving speed of the frame 1. The moving push rod 25 is an electro-hydraulic push rod. One end of the moving push rod 25 is fixedly connected to the seed box 4, and the moving end of the moving push rod 25 is fixedly connected to the seeder 5 and can drive the seeder 5 to move.

[0057] The compaction assembly includes a compaction wheel 26, which is rotatably connected to the frame 1. The compaction wheel 26 is used to compact the soil after sowing.

[0058] The energy storage mechanism includes an energy storage piston 27, a cylinder 26, and an air tank 29. One end of the energy storage piston 27 is connected to the moving end of the moving push rod 25, and the piston end of the energy storage piston 27 is connected to the cylinder 26. The energy storage piston 27 is used to follow the moving end of the moving push rod 25 to compress air into the air tank 29. The cylinder 26 is connected to the air tank 29, which is used to store compressed air.

[0059] The vibration mechanism includes a solenoid valve 30 and a pressure relief valve 31. The solenoid valve 30 is mounted on the adjusting plate 21 and is used to input air from the air tank 29 into the closed telescopic rod 22. The solenoid valve 30 is connected to the inner cavity of the closed telescopic rod 22 and is connected to the air tank 29 through an airflow pipe, as shown in the attached diagram. The airflow pipe includes a rigid pipe 101, a telescopic pipe 102, and a diversion pipe 103. The rigid pipe 101 is made of plastic and is connected to the telescopic pipe 102, which is connected to the adjusting block 20. The telescopic pipe 102 is connected to several diversion pipes 103 via connectors 104. The solenoid valve 29 is connected to the diversion pipe 103. The pressure relief valve 31 is located on the closed telescopic rod 22. The opening of the pressure relief valve 31 is also adjusted according to the detection result of the speed sensor 24 (the speed sensor 24 is connected to the moving wheel 8, and the conveyor disc 13 and the moving wheel 8 are connected to each other through the transmission gear 10, the transmission gear 21 and the transmission belt 12). Therefore, it is only necessary to ensure that the pressure relief valve 31 opens when the conveying trough 1301 moves above the seeder 5.

[0060] Working principle: Before use, the adjustment push rod 6 is activated to adjust the distance between the frames 1 of different precision seeding units according to the row spacing requirements. At the same time, the adjustment motor 15 is activated according to the seeding quantity requirements. The adjustment motor 15 will drive the position adjustment screw 16 to rotate. When the position adjustment screw 16 rotates, it will drive the position adjustment nut 17 to move, which will drive the adjustment plate 21 to move along the slide 19 through the connecting rod 18. When the adjustment plate 21 moves, it will adjust the size of the conveying trough 1301, thereby adjusting the seeding quantity.

[0061] When in use, the frame 1 is pushed to move along the test field, and the loosening roller 9 loosens the soil in front of the frame 1. According to the detection results of the speed sensor 24, the moving push rod 25 will drive the seeder 5 to move down according to the displacement, thereby planting the seeds in the seeder 5 into the test field.

[0062] When the push rod 25 moves, it will drive the energy storage piston 27 to move along the cylinder 26. The piston compressed by the cylinder 26 will be stored in the air tank 29 and input into the closed telescopic rod 22 through the solenoid valve 30. When the conveying trough 1301 moves above the seeder 5, the pressure relief valve 31 will open to input the seeds in the conveying trough 1301 into the seeder 5, thereby preventing the seeds from getting stuck in the conveying trough 1301.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sugar beet breeding plot test field precision drill, characterized in that, The utility model relates to a kind of sweet potato seed precision sowing machine, including: Symmetrically arranged precision sowing unit, the precision sowing unit includes frame, and push handle is connected with the frame; Row spacing adjusting assembly is used to adjust the distance between two precision sowing units; Each precision sowing unit is provided with: Soil loosening assembly is arranged in front of the frame, and the soil loosening assembly is used for loosening and ploughing before sowing; Sowing assembly includes seed storage box, sowing box, conveying mechanism, sowing amount adjusting mechanism and depth adjusting mechanism, the seed storage box is used for storing sugar beet seeds, the seed storage box is arranged on the frame, the sowing box is sleeved on the seed storage box, the seed storage box and the sowing box are communicated with each other, the sowing box is provided with sowing device, the conveying mechanism is used to input the seeds in the seed storage box into the sowing device, the sowing amount adjusting mechanism is used to adjust the conveying amount of the conveying mechanism, and the depth adjusting mechanism is used to adjust the sowing depth of the sowing device; Compaction assembly is arranged at the rear of the frame, and the compaction assembly is used for compacting soil after sowing; Vibrating seed-metering assembly includes energy storage mechanism and vibration mechanism, the energy storage mechanism is used to absorb and store the energy when the depth adjusting mechanism resets, and the vibration mechanism is used to vibrate the seeds in the conveying mechanism by using the energy stored in the energy storage mechanism, so as to reduce the occurrence of seed jamming; The conveying mechanism includes conveying disc, the conveying disc is connected to the sowing box, the conveying disc is provided with a plurality of conveying grooves for clamping seeds; The conveying disc is provided with mounting cavity, the sowing amount adjusting mechanism is arranged in the mounting cavity, the sowing amount adjusting mechanism includes fixed disc, adjusting motor, position adjusting screw, position adjusting nut, connecting rod, adjusting block, adjusting plate, closed telescopic rod and closing spring; The depth adjusting mechanism includes moving push rod, one end of the moving push rod is fixedly connected to the sowing box, and the moving end of the moving push rod is fixedly connected to the sowing device and can drive the sowing device to move; The energy storage mechanism includes energy storage piston, cylinder and gas tank, one end of the energy storage piston is connected to the moving push rod, the piston end of the energy storage piston is connected to the cylinder, and the cylinder is connected with the gas tank; The vibration mechanism includes electromagnetic valve and pressure relief valve, the electromagnetic valve is arranged on the adjusting plate, the electromagnetic valve is connected to the inner cavity of the closed telescopic rod, the electromagnetic valve is connected to the gas tank through air flow pipeline, and the pressure relief valve is arranged on the closed telescopic rod.

2. A precision drill for sugar beet breeding plot trials according to claim 1, characterized in that: The row spacing adjusting assembly includes adjusting push rod and synchronous telescopic rod, the adjusting push rod is connected to the frame of different precision sowing units at both ends respectively, and the synchronous telescopic rod is provided with a plurality of synchronous telescopic rods, and the synchronous telescopic rod is connected to the frame of different precision sowing units at both ends respectively.

3. A precision drill for sugar beet breeding plot trials according to claim 1, characterized in that: The frame is connected with moving wheel on both sides, the soil loosening assembly includes soil loosening roller, the soil loosening roller is coaxially connected to the moving wheel, and the soil loosening roller is used for loosening and ploughing before sowing.

4. A beet breeding plot test field precision drill according to claim 3, characterized in that: The conveying mechanism further comprises a transmission gear one, a transmission gear two and a transmission belt, the transmission gear one is coaxially connected to the soil loosening roller, the transmission gear two is coaxially connected to the conveying disc, and the transmission belt is connected to the transmission gear one and the transmission gear two respectively.

5. A precision drill for sugar beet breeding plot trials according to claim 4, characterised in that: The fixed disc is coaxially connected to the conveying disc, the position adjusting motor is used for driving the position adjusting lead screw to rotate, the position adjusting lead screw is connected with the position adjusting nut, the position adjusting nut is connected with the adjusting block, a plurality of adjusting plates are arranged around the adjusting block, the number of the adjusting plates corresponds to the conveying grooves, the adjusting block is connected with the adjusting plates through connecting rods, the fixed disc is provided with a sliding groove, one end of the adjusting plate is connected to the sliding groove, the adjusting plate is connected with the closed telescopic rod, both ends of the closed telescopic rod are connected to the adjusting plate and the conveying groove side wall respectively, and the closed spring is arranged in the closed telescopic rod.

6. A beet breeding plot test field precision drill according to claim 5, characterized in that: The depth adjusting mechanism further comprises a speed sensor, the speed sensor is arranged on the moving wheel, and the speed sensor is used for detecting the moving speed of the vehicle frame.

7. A precision drill for sugar beet breeding plot trials according to claim 6, characterised in that: The compaction assembly comprises a compaction wheel connected to the vehicle frame.

8. A precision seeding method based on the precision seeding device for sugar beet breeding plot test fields according to any one of claims 1 to 7, characterized in that The method comprises the following steps: A, placing the beet seeds in the seed storage box, adjusting the single seed conveying amount of the conveying mechanism through the seed quantity adjusting mechanism, and setting the single displacement of the depth adjusting mechanism according to the planting requirements; B, pushing the vehicle frame to move along the breeding field, loosening the soil by the soil loosening assembly during the movement, and then conveying the seeds to the seed sowing device through the conveying mechanism for sowing; C, compacting the soil after sowing by the compaction mechanism.

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